A teenager who was driving drunk when he killed a passenger in a Montgomery County crash pleaded guilty Thursday to two felony charges, officials said.

David Wiggins, 19, pleaded guilty to intoxication manslaughter and intoxication assault, officials with the Montgomery County District Attorney's Office said. He was sentenced to three years in prison and 10 years of community supervision.

Prosecutors said the three friends had left a party and were headed to another when Wiggins lost control of his vehicle on Keenan Cutoff. He was speeding when he entered a curve in the road, went off the road and struck a power pole line. Brown, a front passenger seat, was killed on impact.

Fontenot, 17, was in the back seat. He suffered serious injuries. Wiggins was also injured.

Wiggins had a blood alcohol level of .146, almost twice the legal limit of .08, officials said.

As part of the plea agreement, the community supervision terms require Wiggins speak to students at local high schools on the dangers of driving while intoxicated and how his poor decisions led to the death of one of his best friends, the prosecutors' office said.